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OBSERVATIONS ON LIFE HISTORY AND SEX RATIO VARIABILITY OF EUPTEROMALUS DUBIUS (HYMENOPTERA: PTEROMALIDAE), A PARASITE OF CYCLORRHAPHOUS DIPTERA1

Published online by Cambridge University Press:  31 May 2012

H.G. Wylie
H.G. Wylie
Affiliation:
Research Station, Agriculture Canada, Winnipeg, Manitoba
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Abstract

Females of Eupteromalus dubius (Ashm.) oviposit on pupae of cyclorrhaphous Diptera and the larvae develop gregariously as ectoparasites. Details of the life history of E. dubius are described. A progressively lower percentage of female progeny of E. dubius matures as the parasite:host ratio increases. Three mechanisms that may cause this sex ratio change are examined and discussed.

Type
Articles
Information
The Canadian Entomologist , Volume 108 , Issue 11 , November 1976 , pp. 1267 - 1274
Copyright
Copyright © Entomological Society of Canada 1976

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